My first job was working at a gas station, back when most service stations still had people that would clean your windshield and check the oil in your car. I started on day shirt doing that, and then became the overnight cashier. The guy that is stuck in the little glass booth, and the only employee at night.
This was also in a very bad neighborhood. We are talking nighty fights between customers, prostitutes turning tricks in peoples cars in our parking lot. Drug dealers. I was scared for my life every night that I worked there. The last straw came when a guy pulled out this huge Knife, and told me, he was going to wait until my shift ended, and he was going to kill me, as soon as I opened the door for the morning customers. Which at 7a.m was part of my daily job.
I waited for the morning guys to come in before I unlocked the door, and got bitched at for not having the doors unlocked on time. I told them about the guy with the knife, and they could have cared less. So I quit, and called a friend to give me a ride home, and I never went back there again.
A week later, one of the customers was shot in the head, and killed, when someone tried to rob the place. Around the same time that I would have been there working. You would not believe some of the stuff I saw when I worked there.
What I learned? NEVER work at a gas station if they tell you you need to work alone, but, I nip that in the bud by never working at a gas station ever again. They make millions, and care little about their station employees.